688141795 has 16 divisors (see below), whose sum is σ = 911699712. Its totient is φ = 494433760.

The previous prime is 688141789. The next prime is 688141819. The reversal of 688141795 is 597141886.

It is not a de Polignac number, because 688141795 - 2³ = 688141787 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70807 + ... + 79936.

It is an arithmetic number, because the mean of its divisors is an integer number (56981232).

Almost surely, 2^688141795 is an apocalyptic number.

688141795 is a deficient number, since it is larger than the sum of its proper divisors (223557917).

688141795 is a wasteful number, since it uses less digits than its factorization.

688141795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150842.

The product of its digits is 483840, while the sum is 49.

The square root of 688141795 is about 26232.4568998026. The cubic root of 688141795 is about 882.8616359808.

Subtracting from 688141795 its reverse (597141886), we obtain a palindrome (90999909).

The spelling of 688141795 in words is "six hundred eighty-eight million, one hundred forty-one thousand, seven hundred ninety-five".